I spoke at length with the engineer at Story & Clark
about the Rewind problem and here's what we came
up with;

By design, the Rewind circuit is not enabled until
after one wind of paper has wrapped around the Take-Up
spool and lifted the On-and-Hold Switch out of the
groove in the Take-Up spool.

If the unit goes into Rewind as soon as the On-and-Hold
switch is activated, the problem is most likely pneumatic.
There are two possibilities. One, the valve that triggers
the Rewind switch is stuck in the On position. Two, the
rewind switch is stuck in the On position.

To eliminate the valve as the source of the problem,
simply disconnect hose #43 from the stack. This opens
the air line that leads to the Rewind switch, preventing
it from activating. If the problem goes away, the valve
is the problem. If the problem is still there, the Rewind
switch is the problem.

There are two other unlikely possibilities. One, the tape
that covers the bleed access port (on the stack), for the
Rewind valve, is leaking slightly. This causes the valve to
become Super-Sensitive, and the slightest signal from the
trackerbar will trigger the valve into operation. Two, the
Trackerbar itself is slightly out of alignment, allowing air
to seep into the Rewind port - here again making the
Rewind valve super-sensitive.

In both of the above cases, disconnecting hole #43 on
the stack will narrow the problem to the valve or the
trackerbar. From there, simple testing of the air-tightness
of the air line (#44) leading to the trackerbar will determine
if the problem is at the trackerbar or in the valve.

BTW, you can get the Service Manual for the Baldwin
(Classic) System at:

Lastly, based in the information you told me about how
the problem developed over the months, I'm inclined to
think that the problem is the duct tape that seals the bleed
access port for the Rewind valve (on the stack). To eliminate
that as the possible source of the problem, simply cut the
existing tape, clean off the adhesive on the stack, and
replace the old tape with a new piece of duct tape.

Also, if that solves the problem, it would be wise to replace
all of the duct tape on the stack as well as the piece on the
auto-sustain bellow. I'd also check all of the vacuum supply
tubes and replace them if they aren't nice and supple.

Hope this helps.

Musically,

John A Tuttle
Player-Care.com
Brick, NJ, USA

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